Concrete-heater.



W. B. FULTON.

CONCRETE HEATER. APPLICATION FILED ocT. I2. I91?- 1,278,327. Patented Sept. 10,1918.

7 W/W/Z/mZZFu/fm W1tness: Inventor WWW @942 j fiwvww fiaa Attorney WILLIAM B. FULTON, or MInnLErown, onro.

CONCRETE-HEATER;

Specification of Letters Patent. 1

Application filed October 12, 1917f Serial No. 196,308.

To all whom it may concern: 2

Be it known that I, WILLIAM B. FULTON, a citizen of the United States, residing at Middletown, Butler county, Ohio, have invented certain new and useful Improvements in Concrete-Heaters, of which the following is a specification.

' In my United States Patent No. 1,216,223, of February 18th, 1917, I set forth an accessory designed for use in the building of chimneys, tanks, silos, etc, in freezing weather, the accessory involving, among other things, a properly supported heating coil surrounding the structure being formed. My present invention relates to the construction, of the heating means employed in such an accessory, and the invention will be readily understood from the following description taken in connection with the accompanying drawing in which Figure 1 is a side elevation of a concreteheater exemplifying my present improvements:

Fig. 2 a plan of the same: and

Figs. 3 and 4, side elevations illustrating modifications in the top connections of the risers.

While the invention is applicable for use in connection with a variety of concrete structures of various forms in horizontal plan, I have thought best to illustrate the invention as adapted for use in connection with such a structure as a chimney circular in plan.

In the drawing 1, indicates a bendable girdle-pipe adapted to surround the mold-work in which a concrete structure is being produced, the illustration showing this girdle-pipe as being suited for use in the construction of a round chimney:

2, the steam inlet to the girdle-pipe:

3, the outlet from the girdle-pipe, to pass away the water of condensation:

4:, riser-pipes having their lower ends connected with the girdle-pipe:

5, a girdle-pipe connecting the upper ends of the risers:

6, a point of discontinuity in each of the girdle-pipes 7, unions provided in each of the girdlepipes for permitting them to be formed in sections:

8, Ts connecting the lower ends of the risers with girdle-pipe 1:

- Patented sept. 10,1918. i

9, long nipples connecting the PS and,

with Ts, forming the girdle-pipe:

10, caps which may be employed in closing the upper ends of the risers in case those ends are not connected with each other or with a top girdle-pipe: and 11, returns which may be employed in connecting the upper ends of the risers in pairs in cases.

The general heater may be placed, supported and adjusted, in the same manner as the coil set forth in my patent above referred to and, as in that patent, it is my preference that the steam inlet-pipe be brought to the heater through the inside of the structure in order to protect the inlet pipe from cold, which is particularly desirable in the case of such work as tall chimneys. The horizontal form and dimensions of the heater will, of course, be suited to the work in hand. The discontinuous and bendable character of the girdle-pipes permits of a reasonable degree of adjustment of size by more widely opening the gaps in the girdle-pipes, or by lessening the width of the gaps by bending them to smaller girdle dimensions, it being practicable to overlap the ends of the girdlepipes. By this means a given heater can be readily suited for use in connection with structures varying in horizontal dimensions, and, if desired, the heater may be contracted as the rising structure decreases in horizontal dimension, as in the case' of tapering chimneys.

More extended adjustment of dimensions may be effected by adding or subtracting sections, which is readily permitted by the unions, or by employing shorter or longer nipples.

The top girdle-pipe may, if desired, be dispensed with and the upper ends of the risers may be capped, or they may be connected with each other in pairs, as illustrated. It is desirable that the girdle-pipe 1 be arranged helically in order to provide for drainage, and in doing this, it is not necessary to provide for it in the original con.- struction, as the girdle-pipe may be constructed level in the first instance and then sprung or bent out of level to any extent needed for drainage.

I claim 1. A concrete heater comprising, a discontinuous girdle-pipe formed of bendable material and provided with steam-supply and water-discharge means, and a plurality of risers having their lower ends connected combination with at top girdle-pipe connectwith the girdle-pipe, combined "substantially ing the upper ends of the risers, combined 10 as set forth. I substantially as set forth.

2. A structure as set forth claim 1 in 5 combination with TS and nipples and unions J WILLIAM FULTON entering into the construction of the girdle- Witnesses: pipe, combined substantially as set forth. M. S. BELDEN,

3. A structureas specified in claim 1 in I CHARLES VOLLBREGHT.

7 Copies 01' this patent may be obtained for five cents each, by addressing the f commlss iorier of Patents, Washington, D. G. i 

